Dr. James P. Decock, M.D
Family Medicine (Family Medicine Physician)
- Medicare participating
At a glance
- Medical school
- University of Kansas School of Med (Kc/Wich/Sal) (1993)
- Years since graduation
- 33
- In the NPI registry since
- 2006
- Medicare patients seen, 2024
- 176
Licensed in California since 1995, according to the Medical Board of California. We show license dates only for the states that publish them in bulk; see which states do. For other states, check the state medical board.
The NPI date is when this clinician registered for a National Provider Identifier, the billing number used on health claims. It is not a license, graduation or board-certification date. NPIs were first issued in May 2005 and became required on claims in 2007–2008, so an early date usually means the clinician was already in practice before then. What an NPI is
Education and training
- 1993Medical school: University of Kansas School of Med (Kc/Wich/Sal)
- 2006Registered with an NPI (national billing number; not a license date) — NPIs began in 2005, so practice likely started earlier
Undergraduate school, residency, fellowship, licensing exams and board certification aren’t in public federal data. Board certification can be confirmed with the certifying board (ABMS member boards for MDs, AOA boards for DOs).
Specialties and state licenses
-
Family Medicine Physician primary
CA license G81309 (first issued 1995; current)
As reported to the NPI registry. To confirm a license is current, check the state medical board.
Where they work
Hospitals
- Hoag Memorial Hospital Presbyterian Newport Beach, CA
- Providence Mission Hospital Mission Viejo, CA
- Memorialcare Saddleback Medical Center Laguna Hills, CA
Medical groups
- Providence Medical Foundation (1,466 clinicians)
Hospitals this clinician lists with Medicare, and groups they bill Medicare through (Care Compare). Affiliation doesn’t mean they see patients at every location.
Medicare patients and services
- Medicare patients, 2024
- 176
- Services billed
- 3,017
- Patients’ average age
- 74
| Service | Times | Patients |
|---|---|---|
| Established patient office or other outpatient visit, 30-39 minutes | 233 | 115 |
| Established patient office or other outpatient visit, 20-29 minutes | 138 | 90 |
| Insertion of needle into vein for collection of blood sample | 129 | 75 |
| Blood test, comprehensive group of blood chemicals | 98 | 66 |
| Blood test, lipids (cholesterol and triglycerides) | 87 | 63 |
| Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | 84 | 84 |
| Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count | 75 | 66 |
| Blood test, thyroid stimulating hormone (tsh) | 64 | 59 |
| Hemoglobin a1c level | 47 | 25 |
| Established patient office or other outpatient visit, 10-19 minutes | 26 | 26 |
Medicare fee-for-service only. CMS leaves out services billed for fewer than 11 patients. These figures describe a practice’s Medicare work; they aren’t a measure of quality.
Medicare prescriptions
Prescriptions filled under Medicare Part D, including refills. CMS leaves out drugs prescribed fewer than 11 times.
Payments from drug and device companies
In 2025, 7 companies reported 10 payments worth $294 in total to this clinician.
| Intuitive Surgical, Inc. | $99.79 |
|---|---|
| AstraZeneca Pharmaceuticals LP | $67.15 |
| Novo Nordisk Inc | $30.65 |
| Abbott Laboratories | $26.64 |
| Pfizer Inc. | $25.09 |
| Medtronic, Inc. | $24.50 |
| Otsuka America Pharmaceutical, Inc. | $19.68 |
| Food and Beverage | $294 |
|---|
From CMS Open Payments. A payment is not evidence of wrongdoing; many are for consulting, teaching or meals. Clinicians can review and dispute their records with CMS.